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http://hdl.handle.net/2445/131521
Title: | Evidence for direct CP violation from Dalitz-plot analysis of B±→K±π∓π± |
Author: | Garra Ticó, Jordi Graugés Pous, Eugeni BABAR Collaboration |
Keywords: | Física de partícules Experiments Particle physics Experiments |
Issue Date: | 14-Jul-2008 |
Publisher: | American Physical Society |
Abstract: | We report a Dalitz-plot analysis of the charmless hadronic decays of charged B mesons to the final state K ± π ∓ π ± . Using a sample of ( 383.2 ± 4.2 ) × 10 6 B ¯¯¯ B pairs collected by the BABAR detector, we measure C P -averaged branching fractions and direct C P asymmetries for intermediate resonant and nonresonant contributions. We find evidence for direct C P violation in the decay B ± → ρ 0 ( 770 ) K ± , with a C P -violation parameter A C P = ( + 44 ± 10 ± 4 + 5 − 13 ) % . |
Note: | Reproducció del document publicat a: https://doi.org/10.1103/PhysRevD.78.012004 |
It is part of: | Physical Review D, 2008, vol. 78, num. 1, p. 012004 |
URI: | http://hdl.handle.net/2445/131521 |
Related resource: | https://doi.org/10.1103/PhysRevD.78.012004 |
ISSN: | 1550-7998 |
Appears in Collections: | Articles publicats en revistes (Física Quàntica i Astrofísica) |
Files in This Item:
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577686.pdf | 416.12 kB | Adobe PDF | View/Open |
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